What is the sign of 23/45 + (-23/45)? Choose 1

A. Positive

B. Negative

C. Neither positive nor negative--the sum is zero.

Afootball quarterback has two more chances to throw a touchdown before his team is forced to punt the ball. he misses the receiver on the first throw 25% of the time. when his first throw is incomplete, he misses the receiver on the second throw 15% of the time. what is the probability of not throwing the ball to a receiver on either throw?